index.html

<!DOCTYPE html>
<html>
<head>
  <title>My first Vue app</title>
  <script src="https://unpkg.com/vue@2"></script>
</head>
<body>
  <div id="app">
    {{ message }}
  </div>

  <script>
    var app = new Vue({
      el: '#app',
      data: {
        message: 'Hello Vue!'
      }
    })
  </script>
</body>
</html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>My first Vue app</title>
	<script src="https://unpkg.com/vue@2"></script>
	</head>
	<body>
	<div id="app">
	{{ message }}
	</div>

	<script>
	var app = new Vue({
	el: '#app',
	data: {
	message: 'Hello Vue!'
	}
	})
	</script>
	</body>
	</html>